Home / 756,301.88-1,043,683.08-412,140.80

Finding the Fourth Proportional to 756,301.88, 1,043,683.08 and 412,140.80

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Solution

The fourth proportional to 756,301.88, 1,043,683.08 and 412,140.80 is: 568,746.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,301.88 : 1,043,683.08 = 412,140.80 : x
  2. Step 2: Convert to fraction form
    756,301.88/1,043,683.08 = 412,140.80/x
  3. Step 3: Cross multiply
    756,301.88x = 1,043,683.08 × 412,140.80
  4. Step 4: Simplify right side
    756,301.88x = 430,144,379,537.66
  5. Step 5: Solve for x
    x = 430,144,379,537.66/756,301.88
  6. Step 6: Final answer
    x = 568,746.94

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.